Rig has only been used a few dozen times and everything is in pristine / like-new condition. The external hydrophone has been removed and replaced with a Nikonos Bulkhead so you can connect strobes with direct sync cord or with fiber optic through the other bulkheads. This is great for backups or if you ever find yourself borrowing strobes from a fellow diver. The rig already already picks up external noise extremely well on the D7000 internal mic.